Reverse Racist?

So once again, racist Rush Limbaugh is up to his old tricks, the typical conservative asswipe!
You've all heard about him calling judicial nominee Sonia Sotomayor a reverse racist because of her stance with the firefighters, in which, according to Rush, she sided against the white firefighters.
What I would like to know is, what the fuck is reverse racism? You are either a racist or you are not. Going by the theory of Mr. Limbaugh, if you are a racist against a white person of color, you are a reverse racist. If you are racist against people of other color, then you are just a racist. What is the fucking difference? There is no difference in the real world. A racist is a racist, period!